Ah, Oriental-Arms had some similar pieces
http://www.oriental-arms.co.il/searc...nk&s.x=0&s.y=0 but varying to some degree.
I find such sickle-shaped weapons fascinating, and I've always wondered about their effectiveness. The ebay examble is less curved and some sort of draw cut or even stabbing seem feasible. The Oriental-Arms examples have extreme curvatures and certainly don't seem to be intended for stabbing, so how were they used? If one just hooks onto an opponent's limb or extremity and pull, does the cut produce sufficient damage?